Fonts disappearing, artifacts and segfaults (redone)

Michael v.Vierssen machuidel at
Wed Jun 18 12:24:30 PDT 2008

I've done the following:

- Using the NV driver instead of the closed NVidia driver.
  Not tainting the kernel in any way and 3D acceleration disabled.
- Getting a backtrace of Metacity segfaulting. See links.

The crashes and artifacts (see quoted message below) still occur :(

Please see the following links:

Could it be the hardware? And where should I look next?

Thank you ;)

On Wed, Jun 18, 2008 at 11:08 AM, Michael v.Vierssen <machuidel at>

> Hi,
> I'm having problems with the following components:
>  * GTK / Pango / Cairo
>    - Fonts disappearing (partly or fully replaced by box symbols),
>       segfaults, partly drawed widgets etc.
>  * 3d applications / games
>    - Hickups, segfaults etc.
> The problems start to occur a while after using the X server. They do
> not occur consistently. Usually when doing some user activity like
> starting applications, editting fields or pressing buttons.
> Only Firefox, AMSN and intensive 3D applications crash almost instantly
> with segfaults and/or assertions.
> Programs like glxgears and xterm seem to work fine.
> I have the following configuration:
> Software: Ubuntu 8.04 with all latest updates applied
> Motherboard: ECS M825G, Chipset: VIA VT8378 [KM400/A]
> Processor: AMD Athlon(tm) XP 2200+
> Memory: Kingston ValueRAM 512mb DDR
> Soundcard: Creative Labs SB Live! EMU10k1
> Videocard: Nvidia GeForce 6200 (NV44A) with 256mb DDR at AGP 4x
> I tried the following without any luck:
>  * Disabling the onboard videocard.
>  * Disabling the onboard soundcard.
>  * Increasing the AGP aperture.
>  * Reinstalling fontconfig and letting it regenerate all the caches.
>  * Regenerating the fontconfig configuration using debconf.
>  * Reinstalling Pango and Cairo from the Ubuntu repositories.
>  * Removing PCI soundcard and AGP videocard only using the onboard
> hardware.
>  * Trying another AGP videocard.
>  * Trying different xorg settings.
>  * Trying different RAM modules.
>  * Disabling compiz / glx / aiglx.
> Also with the Ubuntu Hardy LiveCD this problem occurs. Windows XP seems to
> work fine (but I do not prefer using that).
> The most weird thing is that these problems still occur when using
> different memory modules and/or videocards. Even the onboard one.
> By reading the logs I also noticed Ubuntu Hardy is using an unstable
> version of Xorg. I'm pretty dissappointed in their decision of this and
> I hope you still want to help me.
> Please see the following links:
> Thank you
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